Materials Literature
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Abstract The present paper reports on our recent achievements including the photoalignment achieved of liquid crystals (LCs) using amorphous chalcogenide semiconductors (AChS) glassy films and the creation of optically addressed spatial light modulators (OASLMs). The photoalignment in this case is based on the phenome…
CoMo/Al 2 O 3 sour water gas shift catalysts with and without TiO 2 modification have been tested in parallel industrial reactors under lean steam/gas conditions for two years, and part of catalyst samples was taken out each year during the maintenance period. The catalyst samples have been characterized using tempera…
The paper presents an overview of the thermal stabilizing behavior of Li-Al-X LDHs (layered double hydroxides) system when used in poly (vinyl chloride) as a stabilizer. Layered lithium aluminium double hydroxides having anions , , and Cl− have been synthesized by the hydrothermal method. The effects of the synthesis…
Abstract We report direct observations of nanostructural and compositional evolution in complex technological diesel oxidation nanocatalysts (DOCs) by using aberration‐corrected (scanning) transmission electron microscopy (AC‐(S)TEM) at the atomic level and nano‐beam electron diffraction (NBED). Two representative pra…
One of the main purposes of nanoplasmonics is the miniaturization of optical and electro-optical components that could be integrable in coplanar geometry. In this context, we propose a numerical model of a polarized scanning optical microscope able to faithfully reproduce both photon luminescence and temperature distr…
Abstract Thin dense films composed of a thermoplastic elastomer [polystyrene‐block‐poly(ethylene butylene)‐block‐polystyrene triblock copolymer (SEBS)] and two polyolefins, poly(ethylene‐co‐ethylacrylate) and poly(ethylene‐co‐propylene), were obtained by blow molding, uniaxial hot stretching, and cooling to room tempe…
Abstract Conductive‐tip atomic force microscopy (C‐AFM) is a powerful tool for investigating the electrical characteristics of phase‐change materials commonly used for electronic and optical data storage. We demonstrate the usefulness of this technique by examining the electrical conductivity of crystalline marks reco…
Tauschgeschäfte: Der bidirektionale spontane Transfer von stimuliresponsiven, mit Polymerbürsten beschichteten Goldnanopartikeln (AuNPs) durch die Öl-Wasser-Phasengrenzfläche wurde realisiert (siehe Bild). Der Transfer der AuNPs vom Wasser zum Öl wird durch die Ionenstärke des Wassers bestimmt, während der Transfer vo…
Early in the history of modern science it was suggested that the regular external form of crystals (their morphology) implied an internal regularity. Visual inspection of many different crystals led to the realization that they all corresponded to one of only seven regular shapes called the seven crystal systems. Whic…
The mechanical properties, morphology, crystallization, and melting behaviors and nonisothermal crystallization kinetics of poly (trimethylene terephthalate)(PTT)/maleinized acrylonitrile-butadiene-styrene (ABS-g-MAH) blends were investigated by an impact tester, polarized optical microscopy, and differential scanning…
Microstructure plays an essential role in the attractive properties of the duplex stainless steels (DSSs) such as toughness and corrosion resistance. These properties are obtained by an adequate balance between the fractions of the ferrite and austenite phases, which can be modified when DSSs are welded. Besides the u…
A facile approach has been developed for the preparation of various morphologies of Au-Ag(2)Te nanomaterials (NMs) that exhibit strong photocatalytic activity. Te NMs (nanowires, nanopencils, and nanorice) were prepared from TeO(2) in the presence of various concentrations (16, 8, and 4 M) of a reducing agent (N(2)H(4…
Abstract This work is aimed at understanding the site occupancies of Ce3+ ions in NaSr4(BO3)3 by luminescence spectra. A series of Ce3+-doped NaSr4(BO3)3 powder samples are prepared by a traditional high-temperature solid-state reaction technique. The luminescence properties in the VUV–UV–vis range are studied. It is…
Calculable results: Complex density functional calculations and spin distribution analyses have been performed for planar and saddled iron(III) porphyrin complexes (see picture). The spin populations and the extent of the interactions between the metal and the porphyrin orbitals were determined, which can explain the…
Abstract Vanadium oxide thin films were prepared by DC reactive magnetron sputtering at substrate temperatures ranged from room temperature to 400 °C, and the effects of substrate temperature on microstructure, optical, and electrical properties of the films were analyzed. XRD spectra showed that the main component of…
We show here a strategy to predict the crystal structure, formulate, and prepare new noncentrosymmetric (NCS) bismuth-phosphate based compounds. It is based on the cooperative-arrangement of polar building units (BUs) which can be created at particular stoichiometric conditions. The arrangement of such BUs into NCS co…
We have used steady-state and time-resolved emission measurements to characterize interfacial electron transfer, or electron injection, from CdSe quantum dots (QDs) to molecularly linked TiO 2 nanoparticles. Electrons were injected from both band-edge and trap states on relatively fast (<10 –8 s) and slow (>10 –8 s) t…
The design of ungrounded meander line inductors (UMIs) and ungrounded interdigital capacitors (UICs) employed in the practical realisation of a planar ungrounded composite right-/left-handed (UCRLH) metamaterial is presented. Accurate lumped-element circuit models are proposed based on partial element theory and confo…
Abstract We present studies of the structure and stability of catalytic gold nanoparticles through in situ aberration‐corrected electron microscopy to investigate the effect of heating on the nature of the identified atomic active sites. Low coordination surface atoms are replaced by atomically clean surface facets th…
Different CuSi composite nanorods with 0-100 at.% Cu were fabricated by an oblique angle co-deposition technique. The effects of increasing Cu during deposition on the morphologies, structures and properties were investigated. During co-evaporation, the addition of Cu decreases the nanorod width and height but increas…